Investigations on lignite use for lead removal from aqueous solutions under static and dynamic conditions: adsorption properties and mechanism exploration

Abstract

Sustainable Biomass Resources for Environmental, Agronomic, Biomaterials and Energy Applications 2 / Ressources de biomasse durables pour des applications environnementales, agronomiques, de biomatériaux et énergétiques 2 Investigations on lignite use for lead removal from aqueous solutions under static and dynamic conditions: adsorption properties and mechanism exploration

Pharmaceutical pollutants adsorption onto activated carbon: isotherm, kinetic investigations and DFT modeling approaches

“…In addition, the OTC molecules acquire more energy to establish stronger interactions with the active sites of the ACT. Several authors in the literature have reported this positive effect of temperature on adsorption [8].…”

“…The pH was adjusted by adding HCl or NaOH using a pH meter (HANA 2210). To study the optimal conditions such as the contact time, the initial pH of the solution (1)(2)(3)(4)(5)(6)(7)(8)(9)(10)(11), the amount of adsorbent (0.1-2 g), the initial OTC concentration (50-200 mg•L −1 ), and the temperature (20-50 °C).…”

“…Numerous treatment approaches for the removal of antibiotics have been considered in recent studies, including reverse osmosis, biodegradation, membrane filtration, photocatalysis, photo Fenton reaction, ozonation, and peroxidation [6]. Despite their confirmed treatment performances, these techniques are unfortunately limited at some levels that might hamper their overall economic feasibility, especially for pollutants at trace levels or relatively high concentrations [7,8]. The adsorption onto activated carbon could be considered an efficient approach and presents a practical alternative for removing pollution [9,10].…”

Industrial dye removal from tannery wastewater by using biochar produced from tannery fleshing waste: a road to circular economy

“…These experiments were performed for fixed adsorbent dosages, aqueous pH and temperature of 2 g•L −1 , 6 and 20 °C, respectively. Several models have been used in scientific literature to fit the kinetic and equilibrium adsorption experiments [24,25]. In the present study, we used the most common kinetic and equilibrium models namely, the pseudo-first-order, pseudo-second-order, intraparticle and film diffusion; and Freundlich and Langmuir models, respectively.…”

Foreword to Sustainable Biomass Resources for Environmental, Agronomic, Biomaterials and Energy Applications 2

“…The first paper is entitled: "Investigations on lignite use for lead removal from aqueous solutions under static and dynamic conditions: adsorption properties and mechanism exploration" [1]. This research work proposed the use of lignite, an abundant and low-cost material, to remove lead (Pb(II)) from aqueous solutions in static (batch) and dynamic (column) modes and, by varying the experimental conditions.…”